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77julia77 [94]
3 years ago
11

(3 3/4)÷(−2 1/2)

Mathematics
2 answers:
Nookie1986 [14]3 years ago
5 0
Am sure it is -1 3/5
Ierofanga [76]3 years ago
3 0

Answer:

-1 1/2

Step-by-step explanation:

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two jets leave an airport at the same time in opposite directions. the first jet is traveling at 323 mph and the other at 347 mp
skelet666 [1.2K]

Remark

This may be a little confusing, but because they are travelling in opposite directions, the distances add when you want to get how far apart they are.

d1 + d2 = 1541

Equation

Let the time this happens = t

d1 = 323*t

d2 = 347*t

323*t + 347*t = 1541 Combine like terms on the left.

670t = 1541 Divide by 670

t = 1541/670

t = 2.3 hours pass before the distance of 1541 miles are between the two planes. You might need the answer to be 2 hours 18 minutes.


4 0
3 years ago
Tod begins piano practice at 4:15 p.M. And ends at 5:50 p.M. How long does he practice
nikdorinn [45]

Answer:

95 minutes/1 hour and 35 minutes.

Step-by-step explanation:

Since there are 60 minutes in a hour you could convert it. Or you could just subtract 550 minutes by 415 minutes and get 95 minutes which is also 1 hour and 35 minutes.

Hope this helps

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5 0
3 years ago
Please help need help djhdhdhdj
suter [353]

Answer:

SAS

Step-by-step explanation:

3 0
3 years ago
Which graph does not represent a function ?
baherus [9]

Answer: the the 2nd circular one

Step-by-step explanation: Functions can't just go in a circle, they will repeat the x value

4 0
3 years ago
Find the modulus and the unit vector along the sum of the vectors. - r₁ +r₂ +r3 given that r₁ = 2i+j+4k - r₂ = 3i-2j+7k, r3 = 5i
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j+8k

first -2i+j+4k-3i-2j+7k+5i+2j-3k

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